CN107589548B - Dodging rod adjusting device and projector - Google Patents
Dodging rod adjusting device and projector Download PDFInfo
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- CN107589548B CN107589548B CN201710885034.7A CN201710885034A CN107589548B CN 107589548 B CN107589548 B CN 107589548B CN 201710885034 A CN201710885034 A CN 201710885034A CN 107589548 B CN107589548 B CN 107589548B
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- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2046—Positional adjustment of light sources
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a dodging rod adjusting device and a projector, and relates to the technical field of projection equipment. The invention aims to solve the problem that the whole dodging rod is easy to deflect when the position of the dodging rod is adjusted by the conventional dodging rod adjusting device. The light homogenizing rod adjusting device comprises an outer tube, a rotating ball, an inner tube and an adjusting assembly, wherein the outer tube comprises a first end and a second end which are arranged oppositely, a spherical containing cavity is formed in the first end of the outer tube, the rotating ball is hinged in the spherical containing cavity, a through hole is formed in the rotating ball, one end of the inner tube is fixedly connected in the through hole, the other end of the inner tube is arranged in the second end of the outer tube through the adjusting assembly, a light beam is transmitted in the inner tube, and the adjusting assembly is used for driving the inner tube to swing around the spherical center of the rotating ball in the outer tube. The light homogenizing rod adjusting device is used for a projector.
Description
Technical Field
The invention relates to the technical field of projection equipment, in particular to a light homogenizing rod adjusting device and a projector.
Background
In a light source for projection, the emergent light of the light source is often not uniform enough, and the quality of projection is affected if the emergent light is directly emitted. Therefore, a light homogenizing device, such as a light homogenizing rod, is usually disposed in the projector to homogenize the light emitted from the light source, and then the homogenized light is emitted into the housing of the image forming assembly.
In practical application of the light homogenizing rod, the light incident surface of the light homogenizing rod needs to be aligned with the light emergent surface of the light source, and the light emergent surface of the light homogenizing rod needs to be aligned with the light incident port on the imaging module housing, and in consideration of assembly errors, the position of the light homogenizing rod usually deviates from the expected position.
For example, fig. 1 and 2 show a light homogenizing rod adjusting device in the prior art, referring to fig. 1 and 2, the light homogenizing rod adjusting device includes a first bracket 01, a second bracket 02, a support member (not shown in the figures) and a cylindrical protective shell 03, the first bracket 01, the second bracket 02 and the support member enclose a mounting hole, the protective shell 03 is located in the mounting hole, the protective shell 03 includes a first end 031 and a second end 032 which are oppositely arranged, the light homogenizing rod 04 is fittingly installed in the protective shell 03, the light inlet end 041 of the light homogenizing rod extends out of the first end 031 of the protective shell, the light outlet end of the light homogenizing rod is located in the second end 032 of the protective shell, a limiting elastic sheet 05 is fixed on the first bracket 01 and at a position corresponding to the light inlet end 041 of the light homogenizing rod, the limiting sheet 05 can apply an elastic limiting force to the light inlet end 041 of the light homogenizing rod to press the light inlet end 041 of the support member, thereby limiting the position of the light inlet end 041 of the light homogenizing rod, the upper surface and the lower surface of the second end 032 of protective housing are equipped with first adjusting screw 06 and first shell fragment (not shown in the figure) respectively, and the left surface and the right surface of the second end 032 of protective housing are equipped with second adjusting screw 07 and second shell fragment (not shown in the figure) respectively, and the position of the second end 032 of adjustable protective housing through two sets of adjusting screw and shell fragment cooperation in the mounting hole to the position of the light-emitting end of even light stick can be adjusted. When the dodging rod adjusting device provided with the dodging rod and shown in fig. 1 and fig. 2 is connected between the light source and the imaging assembly, the relative positions of the light source, the imaging assembly, the first support 01, the second support 02 and the bearing piece can be fixed, the light inlet end of the dodging rod is aligned with the light outlet surface of the light source, and then the position of the light outlet end of the dodging rod is adjusted through the adjusting screw, so that the light outlet surface of the dodging rod 04 is aligned with the light inlet on the imaging assembly shell.
However, in the dodging rod adjusting device shown in fig. 1 and 2, the light incident end 041 of the dodging rod is limited by the limiting elastic sheet 05, the limiting accuracy of the elastic sheet is generally low, and the elastic force is difficult to control, so when the position of the light emitting end of the dodging rod is adjusted by the first adjusting screw 06 and the second adjusting screw 07, the light incident end 041 of the dodging rod is easy to overcome the elastic force of the limiting elastic sheet 05 to generate dislocation, so that the whole dodging rod 04 generates deviation or deflection, and thus, the projection picture a of the projector is easy to generate the deviation shown in fig. 3 on the screen b, so that the position adjustment difficulty of the dodging rod is large, and the efficiency is low.
Disclosure of Invention
The invention provides a dodging rod adjusting device and a projector, which can reduce the possibility of dislocation of a light inlet end of a dodging rod when the light outlet end of the dodging rod is adjusted, so that the position of the dodging rod is prevented from being deviated, the adjusting difficulty of the dodging rod adjusting device is further reduced, and the adjusting efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides an optical homogenizer adjusting device, which comprises an outer tube, a rotating ball, an inner tube and an adjusting assembly, wherein the outer tube comprises a first end and a second end which are arranged oppositely, a spherical containing cavity is formed in the first end of the outer tube, the rotating ball is hinged in the spherical containing cavity, a through hole is formed in the rotating ball, one end of the inner tube is fixedly connected in the through hole, the other end of the inner tube is arranged in the second end of the outer tube through the adjusting assembly, a light beam is transmitted in the inner tube, and the adjusting assembly is used for driving the inner tube to swing around the spherical center of the rotating ball in the outer tube.
The invention provides a dodging stick adjusting device, because a spherical containing cavity is formed in a first end of an outer tube, a rotating ball is hinged in the spherical containing cavity, a through hole is arranged on the rotating ball, one end of an inner tube is fixedly connected in the through hole, the other end of the inner tube is arranged in a second end of the outer tube through an adjusting component, the adjusting component is used for driving the inner tube to swing around the spherical center of the rotating ball in the outer tube, when the dodging stick adjusting device is arranged in a projector, a dodging stick can be firstly arranged in the inner tube of the dodging stick adjusting device in a matching way, then the dodging stick adjusting device carrying the dodging stick is arranged between a light source and an imaging component, the first end of the outer tube of the dodging stick adjusting device faces a light-emitting surface of the light source, the second end of the dodging stick is arranged towards a light-in port on a shell of the imaging component, and meanwhile, the end, therefore, one end of the dodging rod, which is positioned in the first end of the outer tube, is an incident end, one end of the dodging rod, which is positioned in the second end of the outer tube, is an emergent end, and the inner tube is driven by the adjusting assembly to swing around the spherical center of the rotating ball in the outer tube, so that the position of the emergent end of the dodging rod can be adjusted, and the end face of the emergent end of the dodging rod is aligned with an incident port in the shell of the imaging assembly. Compared with the prior art, in the embodiment of the invention, the light incident end of the light homogenizing rod is connected into the first end of the outer tube through the spherical hinge pair consisting of the rotating ball and the spherical containing cavity, and the limiting accuracy of the spherical hinge pair is higher, so that when the light emergent end of the light homogenizing rod is adjusted, the position of the light incident end of the light homogenizing rod is effectively limited at the position of the spherical hinge pair, thereby reducing the possibility that the light incident end of the light homogenizing rod is staggered, avoiding the integral deflection of the light homogenizing rod in the outer tube, further reducing the adjusting difficulty of the light homogenizing rod adjusting device, and improving the adjusting efficiency.
In a second aspect, the invention provides a projector, which includes a light source, a light homogenizing rod adjusting device, and a housing of an imaging assembly, where the housing is located on a light emitting side of the light source, a light inlet is formed in a position on the housing opposite to a light emitting surface of the light source, the light homogenizing rod adjusting device is disposed between the light emitting surface of the light source and the light inlet of the housing, the light homogenizing rod adjusting device is the light homogenizing rod adjusting device according to the above technical scheme, a first end of an outer tube of the light homogenizing rod adjusting device faces the light emitting surface of the light source, a second end of the outer tube faces the light inlet of the housing, the light homogenizing rod is accommodated in an inner tube of the light homogenizing rod adjusting device in a matching manner, and an end face of the light homogenizing rod located in the first end of the outer tube is opposite to the light emitting surface of the light source.
Compared with the prior art, the projector provided by the embodiment of the invention has the following advantages: the end that is located the outer tube first end on the dodging stick is the income light end, the one end that is located the outer tube second end is the light-emitting end, because the income light end of dodging stick is connected in the first end of outer tube through the spherical hinge pair that holds the chamber and constitute by rotatory ball and ball-type, the spacing degree of accuracy of spherical hinge pair is higher, consequently when adjusting the light-emitting end of dodging stick, the income light end position of dodging stick has effectively been restricted in spherical hinge pair position department, prevented from this that the income light end of dodging stick from producing the dislocation, thereby avoided the whole skew that produces of dodging stick, and then reduced the regulation degree of difficulty of the light-emitting end of dodging stick, improved regulation efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a light bar adjusting device in the prior art when viewed from top to bottom;
FIG. 2 is a schematic structural view of the light bar adjusting device shown in FIG. 1 as viewed from bottom to top;
FIG. 3 is a schematic diagram showing a positional relationship between a projection image and a screen of a projector equipped with the light homogenizing rod adjusting device shown in FIG. 1;
FIG. 4 is a perspective view of an adjusting device of a light bar according to an embodiment of the present invention;
FIG. 5 is an exploded view of the dodging rod adjustment device shown in FIG. 4;
FIG. 6 is a cross-sectional view of the light distribution bar adjusting device shown in FIG. 4;
FIG. 7 is a second perspective view of the light homogenizing rod adjusting device according to the embodiment of the present invention;
FIG. 8 is an exploded view of the dodging rod adjustment device shown in FIG. 7;
FIG. 9 is a perspective view of the dodging bar adjustment device shown in FIG. 7 with the sleeve, the first slider and the second slider removed;
fig. 10 is a perspective view of a projector according to an embodiment of the present invention.
Reference numerals:
01 — a first support; 02-a second support; 03-protective housing; 031-a first end of a protective case; 032 — a second end of the protective case; 04-light homogenizing rod; 041-the light incident end of the dodging rod; 05-a limiting elastic sheet; 06-first adjusting screw; 07 — a second adjusting screw; 10-a light homogenizing rod adjusting device; 11-an outer tube; 111 — a first tube section; 112-a second pipe section; 113 — first connection screw; 114-a receiving through hole; 12-a rolling ball; 13-inner tube; 14-an adjustment assembly; 141 — a first adjustment assembly; 1411 — a first adjustment screw; 1412 — a first elastic member; 142 — a second adjustment assembly; 1421 — a second elastic member; 15-a spherical containing cavity; 16-cover plate; 17-a second connection screw; 18-a first guide runner; 19-a first guide post; 20-light homogenizing rod; 30-a lens; 31-a support tube; 40-a sleeve; 50-a bracket; 60-anti-falling structure; 61-third connecting screw; 70-a first guiding structure; 71 — a first cam slot; 72 — a first slide; 80 — a second guide structure; 81-a second cam groove; 82 — a second slide; 90-limit structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 4, fig. 4 is a specific embodiment of a light-homogenizing rod adjusting device 10 according to an embodiment of the present invention, where the light-homogenizing rod adjusting device 10 according to the present embodiment includes an outer tube 11, a rotating ball 12, an inner tube 13, and an adjusting assembly 14 (as shown in fig. 5), the outer tube 11 includes a first end a and a second end B that are oppositely disposed, a ball-shaped accommodating cavity 15 (as shown in fig. 5) is formed in the first end a of the outer tube, as shown in fig. 6, the rotating ball 12 is spherically hinged in the ball-shaped accommodating cavity 15, a through hole is formed in the rotating ball 12, one end of the inner tube 13 is fixedly connected in the through hole, the other end of the inner tube is disposed in the second end B of the outer tube through the adjusting assembly 14, a light beam is transmitted in the inner tube 13, and the adjusting assembly 14 is configured to drive the inner tube 13 to swing around.
In the light homogenizing rod adjusting device 10 provided by the present invention, as shown in fig. 5, since the spherical receiving cavity 15 is formed in the first end a of the outer tube, as shown in fig. 6, the rotating ball 12 is spherically hinged in the spherical receiving cavity 15, the rotating ball 12 is provided with a through hole, one end of the inner tube 13 is fixedly connected in the through hole, and the other end is disposed in the second end B of the outer tube through the adjusting component 14, the inner tube 13 transmits a light beam, and the adjusting component 14 is used for driving the inner tube 13 to swing around the spherical center of the rotating ball 12 in the outer tube 11, therefore, when the light homogenizing rod adjusting device 10 is installed in a projector, the light homogenizing rod 20 can be first installed in the inner tube 13 of the light homogenizing rod adjusting device 10 in a matching manner, then the light homogenizing rod adjusting device 10 of the light homogenizing rod 20 is installed between the light source and the imaging component, and the first end a of the outer tube of the light homogenizing rod adjusting device 10 faces the light, the second end B faces the light inlet on the imaging assembly housing, and the end surface of the light homogenizing rod 20 located in the first end a of the outer tube is opposite to the light emitting surface of the light source, so that the end of the light homogenizing rod 20 located in the first end a of the outer tube is the light inlet, the end located in the second end B of the outer tube is the light emitting end, and the adjusting assembly 14 drives the inner tube 13 to swing around the center of the rotating ball 12 in the outer tube 11, so that the position of the light emitting end of the light homogenizing rod 20 can be adjusted, and the end surface of the light emitting end of the light homogenizing rod 20 is aligned with the light inlet on the imaging assembly housing. Compared with the prior art, in the embodiment of the invention, because the light incident end of the light equalizing rod 20 is connected to the first end a of the outer tube through the spherical hinge pair composed of the rotating ball 12 and the spherical accommodating cavity 15, and the limiting accuracy of the spherical hinge pair is higher, when the light emergent end of the light equalizing rod 20 is adjusted, the position of the light incident end of the light equalizing rod 20 is effectively limited at the position of the spherical hinge pair, so that the possibility of dislocation of the light incident end of the light equalizing rod 20 is reduced, the deviation of the light equalizing rod 20 in the outer tube 11 is avoided, the adjusting difficulty of the light equalizing rod adjusting device 10 is reduced, and the adjusting efficiency is improved.
In the above embodiment, it should be noted that, when the light exit end position of the dodging stick 20 is adjusted by the dodging stick adjusting device 10, the light entrance end surface of the dodging stick 20 will also deviate a certain amount around the spherical center, but since the light entrance end of the dodging stick 20 and the rotating ball 12 are both located in the first end a of the outer tube, the distance between the light entrance end surface of the dodging stick 20 and the spherical center of the rotating ball 12 is very small, and when the light exit end of the dodging stick 20 is adjusted, the deviation amount of the light entrance end surface of the dodging stick 20 is very small, and the small deviation amount can be considered to be within the deviation allowable range.
The outer tube 11 may be an integral structure, or may be formed by connecting a first tube section 111 and a second tube section 112 by a first connection screw 113 as shown in fig. 4, which is not limited in this respect.
In addition, the cross-sectional shape of the outer tube 11 may be circular, square, rectangular, polygonal, or the like, and is not particularly limited herein. Also, the cross-sectional shape of the inner tube 13 may be square, rectangular, or the like, and is not particularly limited herein, as long as the inner hole shape of the inner tube 13 matches the contour shape of the light distribution bar 20 so that the light distribution bar 20 can be fittingly received in the inner tube 13.
Furthermore, the central axis of the through hole may or may not pass through the center of the rotating ball 12, and is not limited herein. However, in order to reduce the offset of the light-entering end surface of the light homogenizing rod 20 when adjusting the position of the light-exiting end of the light homogenizing rod 20, it is preferable that the central axis of the through hole passes through the spherical center of the rotating ball 12, so that the distance between the center of the light-entering end surface of the light homogenizing rod 20 and the spherical center of the rotating ball 12 is small, and when adjusting the light-exiting end of the light homogenizing rod 20, the offset of the light-entering end surface of the light homogenizing rod 20 is small, so that the light-entering end surface of the light homogenizing rod 20 and the light-exiting surface of the light source can be always kept in an aligned state.
Further, in order to reduce the width of the rotary ball 12 in the axial direction of the outer tube 11, it is preferable that, as shown in fig. 6, both ends of the rotary ball 12 in the axial direction of the outer tube 11 are provided with flat positions K, so that, by providing the flat positions K on the rotary ball 12, the width of the rotary ball 12 in the axial direction of the outer tube 11 can be reduced, which is beneficial to reduce the distance between the light incident end of the light homogenizing rod 20 and the center of the rotary ball 12, so that, when the position of the light homogenizing rod 20 is adjusted by the light homogenizing rod adjusting device 10, the offset of the light incident end of the light homogenizing rod 20 in the radial direction of the outer tube 11 can be reduced, the light incident end face of the light homogenizing rod 20 and the light emitting face of the light source can be kept in an aligned state, and, at the same time, by providing the flat positions K on the rotary ball 12, the contact area between the rotary ball 12 and the inner wall of the spherical receiving cavity can be reduced, so that the, the flexibility of the rotating ball 12 rotating in the ball-shaped accommodating cavity is improved.
Further, in order to allow the spin ball 12 to freely rotate in the spherical receiving cavity 15, it is preferable that the surface roughness of the spin ball 12 is Ra 0.4 to 0.8 μm, and when the surface roughness of the spin ball 12 is within this range, the surface smoothness of the spin ball 12 is high, and the spin ball 12 can freely rotate in the spherical receiving cavity 15.
In the embodiment shown in fig. 5, the adjustment assembly 14 may have a variety of configurations. As an example, the first alternative: the adjustment assembly may be for driving the inner tube about a first axis of rotation l as shown in fig. 51Oscillating structure, first axis of rotation l1Through the center of the rotating ball, and a first axis of rotation l1Perpendicular to the central axis of the outer tube. A second alternative: the adjustment assembly may be for driving the inner tube 13 around a second rotational axis l as shown in fig. 52Oscillating structure, second axis of rotation l2Through the center of the rotating ball, and a first axis of rotation l1And a second rotation axis l2And the central axis of the outer tube 11 are perpendicular to each other. A third alternative: as shown in FIG. 5, the adjustment assembly 14 includes a first adjustment assembly 141 and a second adjustment assembly 142, the first adjustment assembly 141 being used to drive the inner tube 13 about the first axis of rotation l1A second adjusting member 142 for driving the inner tube 13 about the second rotation axis l2And (4) swinging. Compared with the first alternative and the second alternative, when the third alternative is adopted, four directions (respectively around the first rotation axis l) of the light outlet end of the light homogenizing rod can be realized1In opposite directions about a second axis of rotation l2Two opposite directions) of the light homogenizing rod 20, the adjusting range of the light homogenizing rod 20 is wider, the adjusting process is more flexible, and the possibility of adjusting the light emitting surface of the light homogenizing rod 20 to be aligned with the light incident surface of the subsequent optical element is higher.
In the third alternative above, for guidance purposesThe inner tube 13 being wound about a first axis of rotation l1While swinging in order to guide the inner tube 13 about the second axis of rotation l2The inner tube 13 is prevented from rotating around its own axis within the outer tube 11, and the projected image generated by the projector is prevented from deflecting at a certain angle with respect to the projection screen, preferably, as shown in fig. 5, defined with the first rotation axis l1The plane that is perpendicular and passes through the centre of sphere of roating ball 12 is first reference surface n, first direction spout 18 has been seted up on the surface of roating ball 12, first direction spout 18 extends along the cross-section border of roating ball 12 on first reference surface n, sliding connection has first guide post 19 in first direction spout 18, first guide post 19 and outer tube 11 relatively fixed, and the axis of first guide post 19 and second axis of rotation l2So that when the inner tube 13 is rotated about the first axis of rotation l1During the swinging, the rotary ball 12 slides along the first guiding column 19 through the first guiding sliding slot 18, and when the inner tube 13 rotates around the second rotating axis l2During swinging, the first guide sliding groove 18 on the rotary ball 12 rotates by taking the first guide post 19 as an axis, so that the rotating path of the inner tube 13 is limited by the cooperation of the first guide sliding groove 18 and the first guide post 19, the inner tube 13 is prevented from rotating in the outer tube 11 by taking the inner tube as an axis, deflection of a projection picture relative to a projection screen at a certain angle is avoided, and the film viewing quality of a user is improved.
In the above embodiment, as shown in FIG. 5, the second rotation axis l is defined2A plane perpendicular to and passing through the center of the rotary ball 12 is a second reference surface (not shown in the figure), a second guide sliding groove (not shown in the figure) can be further formed in the surface of the rotary ball 12, the second guide sliding groove extends along the section edge of the rotary ball 12 on the second reference surface, a second guide post is connected in the second guide sliding groove in a sliding manner, the second guide post is fixed relative to the outer tube 11, and the central axis of the second guide post and the first rotating axis l are fixed relative to each other1Are coincident, so that when the inner tube is wound about the second axis of rotation l2When swinging, the rotating ball 12 slides along the second guide post through the second guide chute, and when the inner tube 13 rotates around the first rotating axis l1During the swing, the second guiding sliding groove on the rotating ball 12 rotates with the second guiding column as the axis.
It should be noted that, as shown in FIG. 5, the reason is thatWhen only one set of guide grooves and guide posts is provided between the rotary ball 12 and the outer tube 11, it is already possible to simultaneously satisfy that the inner tube 13 is respectively wound around the first axis of rotation l1And a second axis of rotation l2The spacing demand of direction during rotatory has consequently, in order to avoid appearing the spacing phenomenon that appears sliding card and die repeatedly many times, preferably only set up a set of direction spout and guide post between roating ball 12 and the outer tube 11 can.
In the embodiment shown in fig. 5, the structures of the first adjusting assembly 141 and the second adjusting assembly 142 may include the following two specific embodiments:
the first embodiment is as follows: first adjusting part and second adjusting part all include the adjusting screw of two relative settings, and two adjusting screw set up respectively in the relative both sides of inner tube, and on the lateral wall of outer tube, the position that corresponds every adjusting screw has seted up threaded through-hole, and adjusting screw's one end cooperation is connected in threaded through-hole, and the other end contacts with the outer wall of inner tube, like this, through the adjusting screw of adjusting inner tube both sides simultaneously, can drive the inner tube and swing in the outer tube.
Example two: first adjusting part and second adjusting part all include relative adjusting screw and the elastic component that sets up, adjusting screw and elastic component set up respectively in the relative both sides of inner tube, and on the lateral wall of outer tube, the position that corresponds adjusting screw has seted up the screw thread through-hole, adjusting screw's one end cooperation is connected in the screw thread through-hole, the other end contacts with the outer wall of inner tube, the elastic component is used for applying a directional adjusting screw's elastic force to the inner tube, like this, through rotatory adjusting screw, can drive the inner tube in the outer tube around first axis of rotation l1Or the second axis of rotation l2And (4) rotating.
The second embodiment may be specifically expressed as: as shown in FIG. 5, the first adjustment assembly 141 includes a first adjustment screw 1411 and a first elastic member 1412, which are oppositely disposed, and the first adjustment screw 1411 and the first elastic member 1412 can cooperate to drive the inner tube 13 around the first rotation axis l1Swinging; the second adjusting assembly 142 includes a second adjusting screw (not shown) and a second elastic member 1421, which are disposed oppositely, and the second adjusting screw and the second elastic member 1421 can cooperate to drive the inner tube 13 around the second rotation axisl2And (4) swinging.
Compared with the first embodiment, when the first adjusting assembly 141 and the second adjusting assembly 142 adopt the structure shown in the second embodiment, the adjustment of the light emitting end of the light homogenizing rod 20 can be realized only by rotating the adjusting screw on one side of the inner tube 13, and the simultaneous adjustment on two sides is not needed, so that the operation process is simple, the efficiency is high, and the realization is easy.
It should be noted that, the structures of the first adjusting assembly 141 and the second adjusting assembly 142 are not limited to the first embodiment and the second embodiment, and may also be other structures, for example, the first adjusting assembly and the second adjusting assembly both include an adjusting screw and a magnet which are oppositely disposed, the adjusting screw and the magnet are respectively disposed on opposite sides of the inner tube, a threaded through hole is disposed on a side wall of the outer tube and corresponding to a position of the adjusting screw, one end of the adjusting screw is connected in the threaded through hole in a matching manner, the other end of the adjusting screw contacts with an outer wall of the inner tube, the inner tube is made of a magnetic material, and a magnetic pole of the inner tube is the same as a magnetic pole of the magnet, so that the magnet can apply a magnetic force pointing to the adjusting screw to the inner tube, and the adjustment of the light emitting end of the.
In the second embodiment, the first elastic element 1412 and the second elastic element 1421 may be elastic sheets, coil springs, elastic materials similar to rubber, and the like, and are not limited herein. However, since the elastic material similar to rubber is prone to aging and deterioration after long-term use, and has a short service life, in order to prolong the service life of the elastic member, it is preferable that, as shown in fig. 5, the first elastic member and the second elastic member are coil springs or spring pieces, but since the spring pieces are sheet metal parts, the dimensional stability of the product is poor, and the product cannot completely meet the design requirement, and since there are burrs in the process of punching the sheet metal parts, when the position of the light emitting end of the light homogenizing rod is adjusted by the adjusting screw, jamming is likely to occur, and therefore, to avoid this problem, the first elastic member and the second elastic member are further preferable to be coil springs, the elastic force of the coil springs is large, the elastic force is easy to control, adjustment can be achieved only by adjusting the rigidity of the coil springs, the surface is smooth, jamming can be prevented, and the technical requirement on the assembling worker is low, specifically, as shown in fig. 5 and 6, the first elastic member 1412 and the second elastic member 1421 are coil springs extending in a radial direction of the outer tube 11, one end of each coil spring is fixed to the inner wall of the outer tube 11, and the other end of each coil spring is connected to the outer wall of the inner tube 13.
In the above embodiment, in order to provide a sufficient installation space for the first elastic member 1412 and the second elastic member 1421, as shown in fig. 6, the outer tube 11 is provided with an accommodating through hole 114 for accommodating the first elastic member 1412 or the second elastic member 1421, as shown in fig. 5, a cover plate 16 is disposed on the outer wall of the outer tube 11 at a position corresponding to the accommodating through hole 114, and the cover plate 16 is connected to the outer tube 11 by the second connection screw 17, thereby providing a sufficient installation space for the first elastic member 1412 and the second elastic member 1421.
Further, in order to enable the light-emitting end of the light bar 20 to be adjusted in position along the axial direction of the outer tube with respect to the imaging module or the light source, as shown in fig. 7 and 8, the light bar adjusting device 10 includes a support tube 30 and a sleeve 40, the support tube 30 is located on the side of the second end B of the outer tube 11 away from the first end a of the outer tube 11, and the support tube 30 is disposed coaxially with the outer tube 11, the end of the support tube 30 away from the outer tube 11 is used for being fixed with respect to the housing of the imaging module, as shown in fig. 7, the sleeve 40 is rotatably sleeved outside the support tube 30 and the outer tube 11, a first guiding structure 70 is connected between the sleeve 40 and the support tube 30, a second guiding structure 80 is connected between the sleeve 40 and the outer tube 11, and when the sleeve 40 rotates with respect to the support tube 30 and the outer tube 11, the first guiding structure 70 and the second guiding structure 80 can cooperate to, in this way, the position adjustment of the light exit end of the light homogenizing rod 20 with respect to the imaging assembly or the light source in the axial direction of the outer tube 11 can be achieved, whereby the light exit end of the light homogenizing rod 20 is realized about the first rotation axis l1In opposite directions and about a second axis of rotation l2On the basis of the position adjustment of the two opposite directions, the position adjustment of the light emitting end of the light homogenizing rod 20 along the two opposite directions in the axial direction of the outer tube 11 is further realized, the position adjustment directions of the light emitting end of the light homogenizing rod 20 are increased from four to six, and the flexibility is higher.
In the above-described embodiment, alternatively, the first guide structure 70 and the second guide structure 80 may be made as shown in fig. 7, that is, the first guide structure 70 includes a first cam groove 71 and a first slider 72 slidably coupled in the first cam groove 71, the second guide structure 80 includes a second cam groove 81 and a second slider 82 slidably coupled in the second cam groove 81, the first slider 72 is relatively fixed to the support pipe 30, the second slider 82 is relatively fixed to the outer pipe 11, the first cam groove 71 and the second cam groove 81 are both provided on the sleeve 40, and the first cam groove 71 and the second cam groove 81 each extend in the circumferential direction of the sleeve 40, the first cam groove 71 and the second cam groove 81 are such that, when the sleeve 40 rotates relative to the support pipe 30 and the outer pipe 11, the first slider 72 slides in the first cam groove 71, the second slider 82 slides in the second cam groove 81, and the distance between the first sliding member 72 and the second sliding member 82 is changed along the axial direction of the support tube 30, so as to drive the outer tube 11 to move relative to the support tube 30 along the axial direction of the support tube 30, thereby realizing the adjustment of the dodging rod 20 along the axial direction of the outer tube 11.
In the above embodiment, as shown in fig. 7, the first slider 72 and the second slider 82 are preferably set screws, and when the set screws are loosened, the sleeve 40 may be rotated to adjust the position of the light grading rod 20 in the axial direction of the outer tube 11, and when the light grading rod 20 is adjusted to the preset position, the set screws may be tightened to achieve the fixation of the position.
In the embodiment shown in fig. 7 and 8, in order to allow the first slider 72 and the second slider 82 to freely slide in the first cam groove 71 and the second cam groove 81, respectively, it is preferable that the roughness of the inner walls of the first cam groove 71 and the second cam groove 81 is Ra 0.4 to 0.8 μm, and when the roughness of the inner walls of the first cam groove 71 and the second cam groove 81 is within this range, the smoothness of the inner walls of the first cam groove 71 and the second cam groove 81 is high, and the first slider 72 and the second slider 82 can be allowed to freely slide therein.
In the embodiment shown in fig. 7 and 8, in order to prevent the outer tube 11 from rotating around its own axis relative to the support tube 30 while moving along the axial direction of the support tube 30, it is preferable that, as shown in fig. 9, a limit structure 90 is provided between the outer tube 11 and the support tube 30, and the limit structure 90 is used for preventing the outer tube 11 from rotating around its own axis relative to the support tube 30 when the outer tube 11 moves along the axial direction of the support tube 30 relative to the support tube 30, so that the movement direction of the outer tube 11 can be limited by the limit structure 90, and the outer tube 11 can be prevented from rotating around its own axis relative to the support tube 30 while moving along the axial direction of the support tube 30, so as to prevent the dodging rod 20 from rotating around the support tube 30, prevent the projection screen from deflecting around a certain angle relative to the.
In the above embodiment, the specific form of the limiting structure 90 may be various, and is not specifically limited herein, for example, as shown in fig. 9, one end of the supporting tube 30 close to the outer tube 11 is rotatably sleeved outside the outer tube 11, the limiting structure 90 includes a limiting sliding groove provided on the supporting tube 30, the limiting sliding groove extends along the axial direction of the supporting tube 30, and the limiting sliding groove is opposite to the second cam groove, and the second sliding member is fittingly inserted into the limiting sliding groove, so that when the second sliding member slides along the second cam groove to drive the outer tube 11 to move along the axial direction of the supporting tube 30, the second sliding member slides in the limiting sliding groove, and the outer tube 11 is effectively prevented from rotating relative to the supporting tube 30. This simple structure realizes easily, and spacing spout and second cam groove correspond same slider, can reduce the component quantity of projector, reduce cost.
In the embodiment shown in fig. 6, the adjustment margin of the adjusting screw is preferably between ± 0.5 and ± 2mm, so that a rotation about the first axis of rotation/can be achieved1In two opposite directions or about a second axis of rotation l2The k is the maximum adjusting allowance in the positive and negative directions of the adjusting screw, and k is more than or equal to 0.5mm and less than or equal to 2mm, so that the adjusting allowance of the adjusting screw is moderate, the light-emitting end position of the dodging rod can be adjusted to be aligned with the light-in opening on the imaging component shell, the overlong adjusting time caused by the overlarge adjusting allowance can be avoided, the adjusting efficiency is improved, and the adjusting process of the dodging rod can be completed within 5 minutes.
Furthermore, in order to realize accurate and rapid adjustment of the position of the light-emitting end of the dodging rod, scale marks can be arranged on the adjusting screw, and the moving distance of the adjusting screw along the axis direction can be accurately known through the scale marks, so that accurate and rapid adjustment of the light-emitting end of the dodging rod can be realized.
Referring to fig. 10, fig. 10 is a specific embodiment of a projector according to an embodiment of the present invention, the projector of the embodiment includes a light source 100, a light homogenizing rod 20, a light homogenizing rod adjusting device 10 and a housing 200 of an imaging assembly, the housing 200 is located at a light emitting side of the light source 100, a light inlet (not shown in the figure) is opened on a position of the housing 200 opposite to a light emitting surface of the light source 100, the light homogenizing rod adjusting device 10 is disposed between the light emitting surface of the light source 100 and the light inlet of the housing 200, the light homogenizing rod adjusting device 10 is the light homogenizing rod adjusting device 10 according to any one of the above technical solutions, a first end a of an outer tube 11 of the light homogenizing rod adjusting device 10 faces the light emitting surface of the light source 100, a second end of the outer tube 11 faces the light inlet of the housing 200, the light homogenizing rod 20 is accommodated in an inner tube of the light homogenizing rod adjusting device 10 in a matching manner, and an end face of the dodging rod 20 located in the first end a of the outer tube 11 is opposite to the light emitting surface of the light source 100.
Compared with the prior art, the projector provided by the embodiment of the invention has the following advantages: the end of the dodging rod 20 located in the first end A of the outer tube 11 is a light entrance end, and the end located in the second end of the outer tube is a light exit end, because the light entrance end of the dodging rod 20 is connected to the first end A of the outer tube 11 through a spherical hinge pair consisting of a rotary ball and a spherical containing cavity, the limiting accuracy of the spherical hinge pair is high, when the light exit end of the dodging rod 20 is adjusted, the light entrance end position of the dodging rod 20 is effectively limited at the position of the spherical hinge pair, so that the possibility that the light entrance end of the dodging rod 20 is staggered is reduced, the whole dodging rod 20 is prevented from deflecting, the adjusting difficulty of the light exit end of the dodging rod 20 is reduced, and the adjusting efficiency is improved.
In the above embodiment, in order to prevent the light equalizing rod 20 from falling out of the inner tube, as shown in fig. 5 and 6, the end of the inner tube 13 is provided with an anti-falling structure 60 for preventing the light equalizing rod 20 from falling out of the inner tube 13, the anti-falling structure 60 may be a set screw, or may be a limiting block as shown in fig. 5 and 6, the limiting block is connected to the end of the inner tube 13 by a third connecting screw 61, or may be in other structural forms, which are not specifically limited as long as the light equalizing rod 20 can be prevented from falling out of the opening at the end of the inner tube 13.
Further, in order to fix the relative positions between the light source 100, the light-equalizing bar adjusting device 10 and the housing 200, as shown in fig. 10, the projector further includes a supporting frame 50, the supporting frame 50 includes a first side 51 and a second side 52 which are oppositely disposed, the light-equalizing bar adjusting device 10 is located in the supporting frame 50, a first end a of the outer tube 11 faces the first side 51, a supporting tube 30 of the light-equalizing bar adjusting device 10 is far away from one end of the outer tube 11 and faces the second side 52, a first light-passing hole C is disposed at a position on the first side 51 which is opposite to the first end face of the outer tube 11, the light source 100 is connected to a position on the outer side face of the supporting frame 50 which corresponds to the first light-passing hole C, a light-emitting surface of the light source 100 is opposite to the first light-passing hole C, a second light-passing hole is disposed at a position on the second side 52 which is opposite to the end face of the supporting tube 30 which is far away from the, one end of the supporting tube 30, which is far away from the outer tube 11, is connected with the edge of the inner side surface of the supporting frame 50 at the position of the second light through hole in a circle, the shell 200 is connected to the outer side surface of the supporting frame 50 at a position corresponding to the second light through hole, and the light inlet on the shell 200 is opposite to the second light through hole, so that the relative positions of the light source 100, the light homogenizing rod adjusting device 10 and the shell 200 of the imaging assembly are fixed through the supporting frame, and the relative position accuracy among the light source 100, the light homogenizing rod adjusting device 10 and the shell 200 of the imaging assembly is ensured.
In order to prevent water or dust in the external air from entering the housing 200 through the support tube 30, preferably, a transparent lens (not shown) is disposed in the support tube 30, and a periphery of an edge of the transparent lens is hermetically connected to a periphery of an inner wall of the support tube, so that the through hole in the support tube 30 is sealed by the transparent lens, thereby effectively preventing water or dust in the external environment from entering the housing 200 through the support tube 30.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (11)
1. The light homogenizing rod adjusting device is characterized by comprising an outer tube, a rotating ball, an inner tube and an adjusting assembly;
the outer pipe comprises a first end and a second end which are oppositely arranged, and a spherical containing cavity is formed in the first end of the outer pipe;
the rotating ball is hinged in the ball-shaped accommodating cavity, and a through hole is formed in the rotating ball;
one end of the inner tube is fixedly connected in the through hole, the other end of the inner tube is arranged in the second end of the outer tube through the adjusting assembly, and a light beam is transmitted in the inner tube;
the adjusting assembly is used for driving the inner pipe to swing around the center of the rotating ball in the outer pipe;
the light homogenizing rod adjusting device also comprises a supporting tube;
the supporting tube is positioned on one side of the second end of the outer tube, which is far away from the first end of the outer tube, and is coaxially arranged with the outer tube, and one end of the supporting tube, which is far away from the outer tube, is used for being fixed relative to the shell of the imaging assembly;
a limiting structure is arranged between the outer tube and the support tube and is used for preventing the outer tube from rotating relative to the support tube when the outer tube moves relative to the support tube along the axial direction of the support tube;
the light homogenizing rod adjusting device also comprises a sleeve;
the sleeve is rotatably sleeved outside the outer pipe and the supporting pipe, a first guide structure is arranged between the sleeve and the supporting pipe, a second guide structure is arranged between the sleeve and the outer pipe, and when the sleeve rotates relative to the supporting pipe and the outer pipe, the first guide structure and the second guide structure can be matched to guide the outer pipe to move relative to the supporting pipe along the axial direction of the supporting pipe.
2. The dodging stick adjustment device of claim 1, wherein the adjustment assembly comprises a first adjustment assembly and a second adjustment assembly;
the first adjusting assembly is used for driving the inner pipe to swing around a first rotating axis;
the second adjusting assembly is used for driving the inner pipe to swing around a second rotating axis;
the first rotating axis and the second rotating axis both pass through the spherical center of the rotating ball, and the first rotating axis, the second rotating axis and the central axis of the outer tube are perpendicular to each other.
3. The dodging stick adjusting device according to claim 2, wherein a plane perpendicular to the first rotation axis and passing through a center of the rotating ball is a reference plane, a guide sliding groove is formed in a surface of the rotating ball, and the guide sliding groove extends along a cross-sectional edge of the rotating ball on the reference plane;
the guide chute is connected with a guide post in a sliding mode, the guide post is fixed relative to the outer tube, and the central axis of the guide post coincides with the second rotating axis.
4. The dodging stick adjusting device according to claim 2, wherein the first adjusting assembly and the second adjusting assembly each comprise an adjusting screw and an elastic member which are oppositely arranged, and the adjusting screw and the elastic member are respectively arranged on two opposite sides of the inner tube;
a threaded through hole is formed in the side wall of the outer pipe at a position corresponding to the adjusting screw, one end of the adjusting screw is connected into the threaded through hole in a matched mode, and the other end of the adjusting screw is in contact with the outer wall of the inner pipe;
the elastic piece is used for applying an elastic force to the inner tube, and the elastic force is directed to the adjusting screw.
5. The dodging stick adjustment device according to claim 4, wherein the elastic member is a coil spring extending in a radial direction of the outer tube, one end of the coil spring is fixed to an inner wall of the outer tube, and the other end of the coil spring is connected to an outer wall of the inner tube.
6. The dodging bar adjusting device according to any one of claims 1 to 5, wherein the first guide structure comprises a first cam groove and a first slider slidably connected in the first cam groove, and the second guide structure comprises a second cam groove and a second slider slidably connected in the second cam groove;
the first sliding piece is fixed relative to the supporting tube, and the second sliding piece is fixed relative to the outer tube;
the first cam groove and the second cam groove are both provided on the sleeve, the first cam groove and the second cam groove both extend in the circumferential direction of the sleeve, and the first cam groove and the second cam groove are not parallel.
7. The dodging rod adjusting device according to claim 6, wherein one end of the supporting tube, which is close to the outer tube, is rotatably sleeved outside the outer tube, the limiting structure is a limiting sliding groove formed in the supporting tube, the limiting sliding groove extends along the axial direction of the supporting tube, the limiting sliding groove is opposite to the second cam groove, and the second sliding member is fittingly inserted into the limiting sliding groove.
8. The light bar adjusting device according to claim 4, wherein the adjusting margin of the adjusting screw is ± 0.5 to ± 2 mm.
9. The utility model provides a projector, its characterized in that, includes the casing of light source, dodging stick adjusting device and formation of image subassembly, the casing is located the light-emitting side of light source, the income light mouth has been seted up with the position that goes out the plain noodles of light source is relative on the casing, dodging stick adjusting device set up in the plain noodles of light source with between the income light mouth of casing, dodging stick adjusting device be any one of claim 1 ~ 8 dodging stick adjusting device, just the first end orientation of dodging stick adjusting device's outer tube the plain noodles of light source, the second end orientation of outer tube the income light mouth of casing, dodging stick cooperation hold in dodging stick adjusting device's inner tube, just lie in on the dodging stick one end terminal surface in the first end of outer tube with the play plain noodles of light source is relative.
10. The projector of claim 9, further comprising a support frame including a first side and a second side disposed opposite each other;
the light homogenizing rod adjusting device is positioned in the supporting frame, the first end of the outer tube faces the first side edge, and one end, far away from the outer tube, of the supporting tube of the light homogenizing rod adjusting device faces the second side edge;
a first light through hole is formed in the position, opposite to the first end face of the outer tube, on the first side edge, the light source is connected to the position, corresponding to the first light through hole, on the outer side face of the supporting frame, and the light emitting face of the light source is opposite to the first light through hole;
the second light through hole is formed in the position, opposite to the end face of the end, of the outer tube, on the second side edge, the supporting tube is far away from one end of the outer tube, the position, opposite to the end face, of the outer tube, of the second light through hole is connected with the edge of the inner side face of the supporting frame in a circle, the shell is connected to the position, corresponding to the second light through hole, of the outer side face of the supporting frame, and the light inlet in.
11. The projector as claimed in claim 10, wherein a transparent lens is disposed in the support tube, and a periphery of an edge of the transparent lens is hermetically connected to a periphery of an inner wall of the support tube.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710885034.7A CN107589548B (en) | 2017-09-26 | 2017-09-26 | Dodging rod adjusting device and projector |
| PCT/CN2018/082864 WO2019062073A1 (en) | 2017-09-26 | 2018-04-12 | Light homogenising rod adjustment apparatus and projector |
| US15/951,601 US10606160B2 (en) | 2017-09-26 | 2018-04-12 | Adjusting device for light-pipe and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710885034.7A CN107589548B (en) | 2017-09-26 | 2017-09-26 | Dodging rod adjusting device and projector |
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| Publication Number | Publication Date |
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| CN107589548A CN107589548A (en) | 2018-01-16 |
| CN107589548B true CN107589548B (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710885034.7A Active CN107589548B (en) | 2017-09-26 | 2017-09-26 | Dodging rod adjusting device and projector |
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| Country | Link |
|---|---|
| US (1) | US10606160B2 (en) |
| CN (1) | CN107589548B (en) |
| WO (1) | WO2019062073A1 (en) |
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| CN110531572B (en) * | 2018-05-23 | 2021-05-11 | 中强光电股份有限公司 | Optical element adjusting mechanism and projection device |
| CN111289519B (en) * | 2018-12-07 | 2022-11-04 | 长春长光华大智造测序设备有限公司 | End face detection device for light homogenizing rod |
| US10818040B2 (en) | 2018-12-27 | 2020-10-27 | Sephora USA, Inc. | Image capture device for a color customization system |
| CN110608907B (en) * | 2019-09-18 | 2024-08-09 | 广州大学 | Support for providing in-plane or out-of-plane elastic torsion constraint and experimental device comprising support |
| CN111707876B (en) * | 2020-06-29 | 2023-03-28 | 中国电子科技集团公司第十四研究所 | A diaxon straightness quick adjustment mechanism that hangs down for large-scale antenna near field tester |
| CN112034578B (en) * | 2020-07-23 | 2021-06-11 | 源能智创(江苏)半导体有限公司 | Dodging rod fixing device |
| CN111929794B (en) * | 2020-08-27 | 2021-05-18 | 深圳市点睛创视技术有限公司 | Optical rod installation device and method |
| US20220086404A1 (en) * | 2020-09-17 | 2022-03-17 | Iview Displays (Shenzhen) Company Ltd. | Dynamic projection method for target tracking and a dynamic projection equipment |
| USD997235S1 (en) * | 2021-08-12 | 2023-08-29 | Xiaoli Yang | LED projector lens |
| USD992633S1 (en) * | 2021-08-13 | 2023-07-18 | Xiaoli Yang | LED projector lens |
| CN114826413B (en) * | 2022-04-27 | 2024-04-09 | 广东光智通讯科技有限公司 | Laser transmitter capable of micro-adjusting transmitting direction |
| CN114879437B (en) * | 2022-05-17 | 2023-07-25 | 深圳市火乐科技发展有限公司 | Dodging device, projection optical machine and projection equipment |
| CN115657324A (en) * | 2022-12-09 | 2023-01-31 | 广东科视光学技术股份有限公司 | Light combining mechanism and optical lens |
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Also Published As
| Publication number | Publication date |
|---|---|
| US10606160B2 (en) | 2020-03-31 |
| CN107589548A (en) | 2018-01-16 |
| US20190094674A1 (en) | 2019-03-28 |
| WO2019062073A1 (en) | 2019-04-04 |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |